Junxiang Zhang, Wei Shi, Chaodu Shi, Qiang Fang, Shijie Fu, Quan Sheng, Xiushan Zhu, Nasser Peyghambarian, Jianquan Yao. Research of novel highly thulium-doped silicate glass fiber and related fiber lasers[J]. Infrared and Laser Engineering, 2021, 50(9): 20200424
- Infrared and Laser Engineering
- Vol. 50, Issue 9, 20200424 (2021)
Fig. 1. Fabricated silicate core glass and cladding glass
Fig. 2. Absorption cross section of Tm-doped silicate glass (Inset: the tested Tm-doped silicate glass)
Fig. 3. Emission cross section of Tm-doped silicate glass
Fig. 4. 3F4 energy level fluorescence decay curve of Tm-doped silicate glass
Fig. 5. (a) End face of Tm-doped silicate glass fiber and (b) the fusion splice of silica fiber and Tm-doped silicate fiber
Fig. 6. Experimental scheme of Tm-doped fiber DBR laser
Fig. 7. Output power of the laser versus pump power with different active fiber lengths
Fig. 8. Spectrum of the laser at maximum output power with 2 cm active fiber (Inset: laser spectrum measured with a resolution of 0.05 nm)
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Table 1. Parameters of silicate fiber and matched silica fiber
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